
.trigger
  font-size: 18px;
  line-height: 64px;
  padding: 0 24px;
  cursor: pointer;
  transition: color 0.3s;
.trigger:hover
  color: #1890ff;
.head-nav
  position: absolute;
  right: 1rem
  top: 0
  height: 100%
  >li
    float: left
    display flex
    height: 100%
    cursor pointer
    align-items: center
    justify-content center
    padding 0 2rem